Bento4 MP4 SDK: Ap4Command.h Source File

Bento4 MP4 SDK

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Ap4Command.h

00001 /*****************************************************************
00002 |
00003 |    AP4 - Commands 
00004 |
00005 |    Copyright 2002-2008 Axiomatic Systems, LLC
00006 |
00007 |
00008 |    This file is part of Bento4/AP4 (MP4 Atom Processing Library).
00009 |
00010 |    Unless you have obtained Bento4 under a difference license,
00011 |    this version of Bento4 is Bento4|GPL.
00012 |    Bento4|GPL is free software; you can redistribute it and/or modify
00013 |    it under the terms of the GNU General Public License as published by
00014 |    the Free Software Foundation; either version 2, or (at your option)
00015 |    any later version.
00016 |
00017 |    Bento4|GPL is distributed in the hope that it will be useful,
00018 |    but WITHOUT ANY WARRANTY; without even the implied warranty of
00019 |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00020 |    GNU General Public License for more details.
00021 |
00022 |    You should have received a copy of the GNU General Public License
00023 |    along with Bento4|GPL; see the file COPYING.  If not, write to the
00024 |    Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
00025 |    02111-1307, USA.
00026 |
00027  ****************************************************************/
00028 
00029 #ifndef _AP4_COMMAND_H_
00030 #define _AP4_COMMAND_H_
00031 
00032 /*----------------------------------------------------------------------
00033 |   includes
00034 +---------------------------------------------------------------------*/
00035 #include "Ap4Expandable.h"
00036 #include "Ap4DynamicCast.h"
00037 
00038 /*----------------------------------------------------------------------
00039 |   constants
00040 +---------------------------------------------------------------------*/
00041 const AP4_UI08 AP4_COMMAND_TAG_OBJECT_DESCRIPTOR_UPDATE  = 0x01;
00042 const AP4_UI08 AP4_COMMAND_TAG_OBJECT_DESCRIPTOR_REMOVE  = 0x02;
00043 const AP4_UI08 AP4_COMMAND_TAG_ES_DESCRIPTOR_UPDATE      = 0x03;
00044 const AP4_UI08 AP4_COMMAND_TAG_ES_DESCRIPTOR_REMOVE      = 0x04;
00045 const AP4_UI08 AP4_COMMAND_TAG_IPMP_DESCRIPTOR_UPDATE    = 0x05;
00046 const AP4_UI08 AP4_COMMAND_TAG_IPMP_DESCRIPTOR_REMOVE    = 0x06;
00047 const AP4_UI08 AP4_COMMAND_TAG_ES_DESCRIPTOR_REMOVE_REF  = 0x07;
00048 const AP4_UI08 AP4_COMMAND_TAG_OBJECT_DESCRIPTOR_EXECUTE = 0x08;
00049 
00050 /*----------------------------------------------------------------------
00051 |   AP4_Command
00052 +---------------------------------------------------------------------*/
00053 class AP4_Command : public AP4_Expandable
00054 {
00055  public:
00056      AP4_IMPLEMENT_DYNAMIC_CAST(AP4_Command)
00057 
00058     // constructor
00059     AP4_Command(AP4_UI08 tag, AP4_Size header_size, AP4_Size payload_size) :
00060         AP4_Expandable(tag, CLASS_ID_SIZE_08, header_size, payload_size) {}
00061 
00062     // AP4_Exandable methods
00063     virtual AP4_Result Inspect(AP4_AtomInspector& inspector);
00064 
00065     // methods
00066     AP4_UI08 GetTag() { return (AP4_UI08)m_ClassId; }
00067 };
00068 
00069 /*----------------------------------------------------------------------
00070 |   AP4_UnknownCommand
00071 +---------------------------------------------------------------------*/
00072 class AP4_UnknownCommand : public AP4_Command
00073 {
00074 public:
00075     // contrusctor
00076     AP4_UnknownCommand(AP4_ByteStream& stream, 
00077                        AP4_UI08        tag,
00078                        AP4_Size        header_size,
00079                        AP4_Size        payload_size);
00080                           
00081     // AP4_Expandable methods
00082     virtual AP4_Result WriteFields(AP4_ByteStream& stream);
00083 
00084 private:
00085     // members
00086     AP4_DataBuffer m_Data;
00087 };
00088 
00089 #endif // _AP4_COMMAND_H_
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